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APPENDIX
B - VFD
VFD Operation
The VFD
keypad
is shown
in Fig. 41. The function
of SOFT
KEYS
1 and 2 change
depending
on what
is displayed
on the
screen.
The function
of SOFT
KEY
1 matches
the word
in the
lower left-hand
box on the display
screen.
The function
of SOFT
KEY
2 matches
the word
in the lower
right-hand
box
on the
display
screen.
If the box is empty,
then the SOFT
KEY
does not
have a function
on that specific
screen.
The UP and DOWN
keys
are used to navigate
through
the menus.
The OFF key is used to
turn off the VFD. The AUTO
key is used to change
control
of the
drive
to automatic
control.
The
HAND
key
is used
to change
control
of the drive to local (hand held) control.
The HELP
button
is used to access the help screens.
For the VFD to operate
on the 48/50PD
units, the drive nmst be set
in AUTO
mode.
The word "AUTO" will appear in the upper left
hand corner of the VFD display.
Press the AUTO
button
to set the
drive in AUTO
mode.
INFORMATION
(CONT)
IMPORTANT:
The current parameter
value
appears above
the
highlight
parameter.
To view the default
parameter
value, press the
UP and DOWN
keys simultaneously.
To restore the default
factory
settings,
select the application
macro "HVAC Default."
VFD Modes
The VFD has several
different
modes
for configuring,
operating,
and diagnosing
the VFD. The modes
are:
• Standard
Display
mode -- shows
drive status information
and
operates
the drive
• Parameters
mode -- edits parameter
values individually
• Start-up
Assistant
mode--
guides
the start up and
configuration
• Changed
Parameters
mode -- shows
all changed
parameters
• Drive Parameter
Backup
mode -- stores or uploads
the
parameters
• Clock Set mode -- sets the time and date for the drive
AUTO
OFF
{ALWAYS
AVAILABLE}
(08675
Fig. 41 - VFD Keypad
Start
Up
with
Assistant
Initial start-up
has been performed
at the factory.
Use of the start
up assistant
will override
factory
VFD configurations.
See below
to check
that all parameters
listed in VFD Configurations
table are
correctly
configured
on the VFD.
Start
Up by Changing Parameters Individually
Initial start-up
is performed
at the factory.
To start up the VFD
with
by changing
individual
parameters,
perform
the following
procedure:
1. Select
MENU
(SOFT
KEY
2). The
Main
menu
will be
displayed.
2. Use the UP or DOWN
keys to highlight
PARAMETERS
on the display
screen and press ENTER
(SOFT
KEY 2).
3. Use
the
UP
or DOWN
keys
to highlight
the
desired
parameter
group
and press SEL (SOFT
KEY 2).
4. Use
the
UP
or DOWN
keys
to highlight
the
desired
parameter
and press EDIT (SOFT
KEY 2).
5. Use the UP or DOWN
keys
to change
the value
of the
parameter.
6. Press
SAVE (SOFT
KEY
2) to store
the modified
value.
Press CANCEL
(SOFT
KEY 1) to keep the previous
value.
Any modifications
that are not saved will not be changed.
7. Choose
another
parameter
or press EXIT (SOFT
KEY 1) to
return to the listing
of parameter
groups.
Continue
until all
the parameters
have been configured
and then press EXIT
(SOFT
KEY 1) to return to the mare menu.
• I/O Settings
mode -- checks
and edits the I/O settings
Standard
Display
Mode
Use the standard
display
mode
to read information
on the drive
status
and operate
the drive.
To reach the standard
display
mode,
press
EXIT
until the LCD
display
shows
status
information
as
described
below.
See Fig. 42.
The top line of the LCD display
shows
the basic status information
of the drive.
The HAND
icon indicates
that the drive
control
is
local
from
the control
panel.
The AUTO
icon indicates
that the
drive is in remote
control mode,
such as the basic I/O (X1) or field
bus.
The arrow
icon indicates
the drive
and motor
rotation
status. A
rotating
arrow
(clockwise
or counterclockwise)
indicates
that the
drive
is running
and at set point and the shaft direction
is forward
or reverse.
A rotating
blinking
arrow
indicates
that the drive
is
running
but not at set point.
A stationary
arrow indicates
that the
drive
is stopped.
For Carrier rooftop
units,
the correct
rotation
is
counterclockwise.
The upper right corner shows the frequency
set point that the drive
will maintain.
Using
parameter
group
34, the middle
of the LCD display
can be
configured
to display
3 parameter
values.
The
default
display
shows
parameters
0103
(OUTPUT
FREQ)
in percentages,
0104
(CURRENT)
in amperes,
and 0120 (AI1) in milliamperes.
The
bottom
corners
of the
LCD
display
show
the
functions
currently
assigned
to the two soft keys. The lower middle
displays
the current time (if configured
to show the time).
The first time the drive
is powered
up, it is in the OFF mode.
To
switch
to local hand-held
control
and control
the drive
using the
control
panel,
press
and hold
the
HAND
button.
Pressing
the
HAND
button switches
the drive to hand control while
keeping
the
drive
running.
Press the AUTO
button
to switch
to remote
input
control.
To start the drive
press the HAND
or AUTO
buttons,
to
stop the drive press the OFF button.
AUTO "_,
15.8Hz
3@.8Hz
3,7A
838 HA
I 00:00 I mEHU
Fig. 42 - Standard
Display
Example
(08676
83
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